Apparatus for needling a non-woven

Abstract

An apparatus is described for needling a non-woven ( 2 ) with at least one support ( 6 ) for a needleboard ( 4 ) held in a frame ( 12 ) and with two parallel eccentric drives ( 7, 8 ) which are disposed between the frame ( 12 ) and the needleboard support ( 6 ) and are made of two parallel eccentric shafts ( 9 and 10 ) each for the needleboard drive in the needling direction on the one hand and in the direction of passage of the non-woven on the other hand. In order to provide advantageous constructional conditions it is proposed that an intermediate support ( 13 ) is provided between the needleboard support ( 6 ) and the frame ( 12 ) and that the intermediate support ( 13 ) is guided with respect to the frame ( 12 ) and the needleboard support ( 6 ) with respect to the intermediate support ( 13 ) in circular paths by way of the two eccentric drives ( 7, 8 ) which are disposed on the one hand between the frame ( 12 ) and the intermediate support ( 13 ) and on the other hand between the intermediate support ( 13 ) and the needleboard support ( 6 ).

What is claimed is:  
     
       1. An apparatus for needling a non-woven web in a needling direction, comprising 
       (a) a frame,  
       (b) a needleboard held in the frame on a support, the non-woven web moving along the needleboard in a direction of passage,  
       (c) two parallel eccentric drives disposed between the frame and the needleboard support, the eccentric drives respectively driving the needleboard support in the direction of passage of the non-woven web and in the needling direction, each eccentric drive comprising  
       (1) two parallel eccentric shafts extending perpendicularly to the direction of passage,  
       (d) an intermediate support holding the needleboard support and disposed between the frame and the needleboard support,  
       (1) one of the eccentric drives being mounted on the frame and the intermediate support being mounted on the eccentric shafts of the other eccentric drive, and  
       (2) the one eccentric drive driving the intermediate support in a circular path relative to the frame while the other eccentric drive drives the needleboard support in a circular path relative to the intermediate support.  
     
     
       2. The apparatus of  claim 1 , wherein the two eccentric drives have an angular position which is adjustable.